3,046 research outputs found
Chemiluminescence emission in cholesteric liquid crystalline core-shell microcapsules
Chemiluminescence behaviour in the core region of water/oil/water double emulsion droplets with cholesteric liquid crystalline (CLC) middle phase (CLC core-shell microcapsules) was demonstrated. We successfully fabricated CLC core-shell microcapsules containing an aqueous luminol solution as the inner phase using a microfluidic device, in which the helical axis of the CLC phase is normal to the surface. The CLC core-shell microcapsules proved to be a plausible candidate for highly sensitive H₂O₂ sensors because of the omnidirectional photonic structures of the CLC phase.Iwai Y., Kaji H., Uchida Y., et al. Chemiluminescence emission in cholesteric liquid crystalline core-shell microcapsules. Journal of Materials Chemistry C 2, 4904 (2014); https://doi.org/10.1039/c4tc00699b
30S Beam Development and X-ray Bursts
Over the past three years, we have worked on developing a well-characterized
30S radioactive beam to be used in a future experiment aiming to directly
measure the 30S(alpha,p) stellar reaction rate within the Gamow window of Type
I X-ray bursts. The importance of the 30S(alpha,p) reaction to X-ray bursts is
discussed. Given the astrophysical motivation, the successful results of and
challenges involved in the production of a low-energy 30S beam are detailed.
Finally, an overview of our future plans regarding this on-going project are
presented.Comment: 7 pages, 2 figures, 5th European Summer School on Experimental
Nuclear Astrophysics, Santa Tecla, Sicily, September 200
Cytomegalovirus retinitis in a seronegative patient with systemic lupus erythematosus on immunosuppressive therapy
Structure of Polyelectrolytes in Poor Solvent
We present simulations on charged polymers in poor solvent. First we
investigate in detail the dilute concentration range with and without imposed
extension constraints. The resulting necklace polymer conformations are
analyzed in detail. We find strong fluctuations in the number of pearls and
their sizes leading only to small signatures in the form factor and the
force-extension relation. The scaling of the peak in the structure factor with
the monomer density shows a pertinent different behavior from good solvent
chains.Comment: 7 pages, 5 figures. submitted to EP
Effect of a twin-emitter design strategy on a previously reported thermally activated delayed fluorescence organic light-emitting diode
In this work we showcase the emitter DICzTRZ in which we employed a twin-emitter design of our previously reported material, ICzTRZ. This new system presented a red-shifted emission at 488 nm compared to that of ICzTRZ at 475 nm and showed a comparable photoluminescence quantum yield of 57.1% in a 20 wt % CzSi film versus 63.3% for ICzTRZ. The emitter was then incorporated within a solution-processed organic light-emitting diode that showed a maximum external quantum efficiency of 8.4%, with Commission Internationale de l’Éclairage coordinate of (0.22, 0.47), at 1 mA cm$^{-2}
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